<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <div id="app"></div>
</body>
<script src="https://unpkg.com/vue@next"></script>
<script>
    const app=Vue.createApp({
      
        template:`
        <layout-demo v-slot="props">
        <div>{{props}}</div>
        </layout-demo>
        <layout-demo v-slot="item">
            <div>{{item}}</div>
        </layout-demo>`
    })
    app.component('layout-demo',{
        data() {
            return {
                lists:[
                    {title:'A'},
                    {title:'B'},
                    {title:'C'}
                ]
            }
            
        },
        template:`
        <div>
            <slot v-for="item in lists" :item="item"></slot>
        </div>`
    })
    app.mount('#app')
</script>
</html>